Mechanical movement.



E. H. SIGURDSON. MECHANICAL MOVEMENT. APPLICATION FILED DEC. I4, 1916.

Patented Jum: "4, 1918 6 SHEETS-SHEET I.

E. H. SIGURDSON.

MECHANICAL MOVEMENT. APPLICATION FILED DEC. I4, 1916..

Patnted June 4, 1918.

6 SHEETS-SHEET 2.

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M WW4 503mm m BEAM-M 1M WW ma E. H. SIGURDSON. MECHANICAL MOVEMENT. APPLICATION mso 05014. 1916.

Patented June 4, 1918.

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E. H SIGURDSON.

MECHANICAL MOVEMENT. APPLICATION FILED DEC. 14. 1916.

Patented June 4,1918.

5 SHEETS-SHEET 4.

E. H. SIGURDSON.

MECHANICAL MOVEMENT APPLICATION FILED DEC. 14, '-J t. i ,,268,289, arented June 4:, 1918..

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MECHANICAL MOVEMENT.

APPLICATION HIE) DEC. :4. 1915.

1,268,289., Patented June 4, 1918.

ESHEETS-SHEET 6.

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i 1 EIRIKUB HJALMAR SIGURIDSON, OF WINNIBEG, MANITOBA, CANADA.

MEcHANIcan MOVEMEiiT'I.

Specification 0f Letteis Patent.

PatentedJune 4, 1918.

Application filed December 14, 1916. Serial No. 136,944.

of'ivhich rotary motion may be converted 1 o lnto reciprocat on motion or vice versa, and the ob ect/ the invention is to provlde 'a simple device for the purpose having means of adjustment whereby the motion produced may be varied from circular to elliptical or may be made distortions thereof.

As the device is capable of a great many useful applications a number of these are introduced as illustrative only, and with these and certain other objects ,in view the invention consists ofj the novel arrangement and combinationof, parts described in the following specification and then more (particularly pointed out in the appended claims, reference also being had to "the accompanying drawings in which. similar characters of reference refer to similar parts throughout t-h e different views, and iIi which Figure 1 is a front elevation; of a woodturning lathe in which is embodied the invention, Fig. 2 is a sectional view taken on the line 2 inFig. 1. 1

Fig. 3 is a sectional view taken on theline 3 in Fig.2. t

Fig. {his a section on the line 4: in'Fig. 2. Fig. 5 -is a section onthe line 5' in Fig. 2.

F igj 6 is a diagram showing the movements of the parts when set to describe an ellipse. I

Fig. 7 is the lathe head with its immediate connections.

Figs. 8, 9, 10," 11, 12, 1.3, 14, 15, 16, 17,

' and 18 are details of the means used to operate the lathe head.

Fig. 19 is a sectional view showing the device as applied to an electrical display device. i

Fig. 20 isa front GlBVZLblOD. of the devlce i as in Fig. 19, the dotted lines showing the path oflthe' electric lights.

Figs. .21 and 22 show the device in connection with an astronomical illustrator, in

in Fig. 23.

. 1 y invention; relates to devices by means which two bodies are revolved at right angles the 611B about the other. I

Fig. 23 1s a sectional view of an air pump in which the device is used to cause the reciprocation of the pistons.

section taken on the line 27 in an annular casting 4 concentrically secured thereto. g

The casing A is supported on a frame work B having an upstanding end 5 supporting a ring 6 surrounding the casting 4,

the casting and ring being shaped to afford a ball race having the balls 7 interposed between the two parts. The opposite end of the casing A is rotatably mounted on a shaft 8, carried by the pedestal 9 forming part of the frame B. It will be noted that the shaft 8 is secured. in the head of the pedestal by a setscrew 10, so thatrotation of the shaft is prevented. A stepped pulley 11 is secured to the end 3 so that the casing may be rotated at different rates of speed from a suitable source of power.

A member, of which Fig. 8 shows an end view, is shaped to form three sides of a hollow tube or pipti 12 which passes diametrically across the casing IA and is secured to the inner side of the end 2 thereof, the

end thus forming the fourth side of the tube. A member 13 is rcciprocably disposed in the tube 12 and a pin 14 is secured in the member 13, preferably by means of a rivet 15, the pin 11 standing-at right angles to the member 13 and projecting out therefrom through the end 2 of the casing by way of a slot 16 formed therein in ine with the member 13 and within the limits of the casting 4.

A lathe head 17 is carried at the end of the pin 14:, the head being provided with adjustable jaws 18 between which to receive a piece of wood to be'shaped.

19- indicates a collar not wholly necessary, on the pin let outside of the end 2 of the casing.

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'. guitleeiiain. passe HSi. below the lower limitof the inovement of the reeiprocable member 1?, the block having an opening therethrough for passage of abolt or rod :21 having its upper end secured in the end. oi the member 13 by a not in the manner of a joint bolt conneetioo. A compression spring 23 tainted under compression on the rod 21 below the block 320 by the washer Qiand nut 25, so {that the power of the spring is ex erted on the member 13 in the direction of the bloek 20, the normal position/of the pi 1 it being thus at the end 26 of the slot 16 in the head of the casing.

The casing; [t is divided by a partition :37. and a iv-Wheel 28 (big. it) is carried eentraiiy thereof by a pin 29. 1h slot 30 is provided in one oi the spokes t the wheel.

28 to receive a (lt'iililt'llilll (Fig. 13), the

cra11lc-p.in being provided vithe t oollar. 52 toengage one side of the spoke anti 'a'fnut 38 to engage the opposite side meteors) that the crank-pin. may beadjustably seeured in the slot "'3 The crank-pin is further provided with an end not for a purpose clearly shown hereinafter. It C(mneeting red ex tends between the eranlg-pinil anda second pinbti on both of which it is mounted in the usual manner, the pinniG being secured in the upper pert oi the member 13 and extending out therefrom through a slot 2'? formed ii'nthe rear side of the tube 12. A. casting;- 38, she W11 se iar:.tteiy in Fi l0 and lit. provided with an openihg 39 by means of which is mounted on the crank-pin. 31, irovided with tnrther oi'iening L0. angles to the oifieninp' 2-39, wherein to tlizibhd ot a then )tlng red A! the receive casting being provided with a. set screw b means 'oit' 'ivhl ibqtbe rod may be adbt secured in the casting. The connei' rod extends to and. is mounted upon a. bolt 4-3 Whieh passes tln'ongh a slot il in the partition 2?. the bolt having; a nut by nhici" the rod. connection. is 1nainiaineth and speetvl. hlotdts it; and i7 ada ttal to engage and. siidr-f noon the opposite i". of the partition 25?. The iJ EK -16 and ii may be further commuted by the pins to to maintain their relationship.

The boil it ends in an eye t!) having pivforming a swive connection. w th the shire blot-it iii. in which mounted. the shire fit, end a 7 hand the shive D2. Tillie shive and its mthiovtions are shown separab in .tigr. it). The ends of the chain are secured to rods t and which pass through the fruit like iuiii'obers it; and i }(i'3i' these oath being: provided with; n.

such... 5h to Viv-hive the hail. of) jiorn wi on the i mt oi the rod {mi-taming I the tom.

the in and LT, and it wiil.

is main 1,2es,2se

bei'notdd thatthe fork members are slotted as at and 61 foi p'assagc off the rodsfand to allow of li-initedswing offrods therein.

A verticallinembbr 62 rifidly-se'eiited to the nonrotatable shaft 8 Wliieh passes cenma tl'ieretlirough, this bei g accomplished by the nut 63 and Washer Tlhelmember 62 is provided with slots 65 adjacent the ends thereof for otwhich the members 56 and 57 are secured rotatably to the said member. he members 56 and 57 are made adJuStable iongit'urlinal-ly of the member 62 by means of the threaded rods 67 and 68 respectivoto each, these being, mounted to turn inlthe eyes 69and'70 secured to thebaek' of the membei 62, but without longitudinal movenient, While in screw-threaded engagement with the eyes 71 on the bolts 66. The heads of the rods 67 and 68 are grooved as at .72

so that they may be operated by a screw (rivet-passed in through the openings 7;} formed in the Wall 1 of the casing.

The adjustment of the members 56 and (the adjustment of the rod 41 cooperating); operates to control the extent of the move.

ment of the pin 14-. indicated the,

screw is of course again tightened to secure i the rod in its new position. In the appli cation under consideration the adjiistnient has been made with a view to having the pin describe an oval such as C inFighfi; and to this end the members 56 and t fi ililjt been moved. apart so that the slack in the. chain will reach farther at the ends than. at the center. g

it is of course understood that the sprocket Wheel 52 travels on the chain 53 125 a guide and that the power. of the spriugitzi is always opposed to the-sbortening, oi: the chain, so that if the case it be revolvedflhy means b3! the pulley it, the operation'iviil'be as :i ilows- I,

Ta "1;; it for geafnted that indicates the position. oi the sprocket whee 5:2 as in l ig. as the case revolves ('ioi-i wise the slaekness in the chain will be earried out laterally by the Wheel the mer e hers 56 and revoiving on their pins (iii to accommodate themselves to the movements of the chain. his the wheel travels on the ehain toward the point 52*. inthe diagrrmn (Fig.5. 6), the pin or bolt guided by the blocks it; and ti". will rave}toward he upper end of the slot t:

in the ease and the tiltiiliiltltllhifg i'ott tt will i'm'ee Hffliiiilltiil oi. the wheei 25S. sprocket wheel reaches the position 52 in the diagram, the case A will have made a quarter turn. while the Wheeled revolving T passage of the bolts 66 by means the point 52 in the partition 2''? Wheii th e.

with the, case will have made a three-quarter turn, the connecting rod 35 in the meantime having operated to move the member 13 out in the tube 12 andso to have carried the pin 14 in toward the point 1% in the diagram, this being gradually effected by the gradual shortening of the chain 53 toward the center.

As the wheel 28 is a fly wheel and has a heavy rim as shown, the stored power easily carries it past the center, at which time, the wheel 52, having passed the point 52, is traveling toward the position 52, having, reached which, one side of the oval Chas been described, the casing A has made a half revolution and the wheel 28 a revolu tion and a half. From this it will be seen that while completing the oval C the wheel 28 when revolving in the same direction makes three complete revolutions to a single revolution of thecasing A, but if the wheel were revolved in a directioncontrary to that of the case their revolutions would be equal.

Having the movements as described in view it will be seen that if a block of wood 1 were secured within the jaws 18 of the lathe head 17 and a stationary turning tool set up against the face of the block, an oval such asy C. in Fig. 6 would be formed on the block;

By adjusting the members 56 and 57 to ward each other a sufiicient distance but always equally distant from .the center, it would be possible to have the chain equally slack all around the center in which case a true circle would be described on the block of wood mentioned. And again, if one of the members, 56 or 57, were secured at a point closer to the center than the other, a pear shaped figure would be described on the block.

From this it will be seen that a variety of figures may be arranged to ,be described on a of the adjustments described.

It will also be noted that there is no reason why the case A might not be made stationary and the member 62 to revolve, in which case the rotary motion of the member block of wood or other material by changes 62 would be transmitted to the member 13 in 'reciprocatory form and the pin 14 would merely move back and forth in the slot 16. In Figs-19 and 20, whieh show the device inconnection with an electric sign or window attractor, the casing A may be of oval shape and the casing A and member 62 are both stationary while a member 74 is revolubly mounted on the stationary shaft 8, the said member being bolted through a spacing sleeve 75 to the gear wheel 76 in mesh with the gear Wheel 7 7 driven from the Tmotor 78. The member 74 carries a pair of forwardly projecting members 7 9 and preferably secured thereto adj acent-the ends thereof by bolting through as shown at 81. The members 79 and 80 are resilient by reason of the coils 82 formed in each and they are connected in spaced relation by a bar 83 which is preferably also of yielding material to allow it to give to the movements of the members which it connects. Each of the members 79 and 80 carries at its forward end an electric lamp 84 these being energized by the usual means which, as they form no part of the present invention, are

the path,- indicated by the dotted lines in Fig. The placque 86 may carry an in- ,scription of advertising value, and if the speed .of the device be made sufficiently rapid, this, when viewed from the front, will appear to be surrounded by a continuous band of light, which, by the use of colored lights may be made very attractive.

Figs. 21 and 22 show the manner in which the movement may be made to revolve two bodies at right angles to each other. In the form shown the application is of illustrative value only, though it is believed thatit may be ultimately made use of in the construction of static electric machines. In this application the casing A is circular in its greatest dimension and oval in cross section and formed with a circular opening 88 in front. A split sphere- D is mounted in the opening 88 the halves 89 and 90 of the sphere being pivoted as at 91 to the sides of the opening. The hemispheres are separated to provide a space 92therebetween and a pin 93 rigidly connects the halves off center. v

A connecting rod 94 isto form a crank. mounted on the crank pin 93 and extends through the space 92 to connectwith a lever 95 at the pivotal point96, the lever being fulcrumcd at the point 97 and extending rearwardly of the point 95 to a forked member 98 between the prongs of which its movements are guided. The wheel 52 is swiveled on the lever between the point 96 and the guide 98 so that when the case A is revolved the movement of the wheel 52 on the flexible member 53 serves to draw the lever 95 toward the center, a spring 99 being opposed to this movement and operative to reverse the same at the proper moment. The sphere Dis thus revolved in the opening 88 at right "angles to the movement of the case A and at the rate of two revolutions to one of the case.

a eoaeee Figs. 23, 24: and 525 show the device as iLP-' plied to an air pump to reciprocate thepistons and Fig. 26 is a diagram of the movements of the actuating parts. in these ligures the member 62, the. flexible member 53 and the sprocket Wheel 52 are duplicated by the members 62, 53 and 52?, the duplicates its length by a lateral plate 103, this being preferably accomplished by making the cylinder in two flanged sections to bolt to- .gcthcr on the plate, as shown in Fig. 27.

Further partitions 10 1 and are provided in the cylinder on the opposite sides of the plate 103 and spaced therefrom to provide the chambers 106 and 107 having communication with the interior of the easing A by the openings 108 in each, Valves 109 in the partitions 104-. and 105 open into the chambers from the cylinder, these being normally maintained. in closed position by the springs 110 on the guide pinpassing through the valve covers. Pistons provided with valves 111 and .112 are mounted in each end of the cylinder, the pistons being con nected for similar movement byslide plates 113 outside the cylinder, these having case screws 11-1 passing through slots 115 in the walls of the cylinder and into the fabric of the pistons.

The wheels 59; and 52 swivelcd on the sliding plates on the opposite sides of the cylinder and at the opposite ends of the said plates as clearly shown in Fig. and previously mentioi'led, the niembers 69. and62 areal; right angles to each other, so that when. the wheel is at one end oi the flexible member 53 the wheel is at the center of the tie 13h) member This is clearly sl'iown in the diagram, Fig. 538. r l

lhe casing A is rotatalfaly supported on the one side by the sleeve (a part oi the casing} 116 on the shaft 8, and on the opposite side by a statimiary tube 11? which also forms an exit tor the air pun'ipcd into the caeing' The casing revolved from a suitable source of pr. *e by the policy 115; on the sleeve 110, and as it revolves the wht and 551 travel on their respective members 52:3 and 53", thus alternative n ingr to. reciprocate the valves 111 and 112 in the cylindcr, theise alternately receiving the air through the val vrs 101 and 102 and forcing it on through the valves 100 into having the chambers 106 and 107 from which it passes by the openings 108 into the casing A, thence out through the pipe 117 which may be lengthened to reach a consumer of the air so pumped.

It will be noted that as in the case of the fly wheel 28 previously mentioned, there are two complete reciprocations oi the piston valves 111 and 112 to-each. revolution of the casing 11, so that great pumping capacity may be secured with a low initial speed.

From the foregoing description in conjunction with the illustrations used it will be seen that the device provides in compact form a novel movement capable of a great variety of useful applications and that these I were not exhausted in the examples shown but that many others will readily occur to persons skilledin the arts to which the de vice may pertain.

Having thus fully described my said in- VGl'llJlOl], what I claim is--' 1. A device of the kin d described comprising a rigid member, a flexible membenhaving its ends spaced apart and connected wit the rigid member to form a loop, a yielding-1y supported rotatable member adapted to travel in the loop as a guide and to maintain the said loop under tension, and means to revolve the rotatable member in. a plane parallel with that of the rigid member whereby the rotatable member is constrained to follow a path delimited by the slaclrness in the loop.

A device of the kind described comprie 111,; a. rigid member, a flexible member havino' its ends spaced apart a distance less than the lengtl'i of the same to term. a loop, and means admstably connecting the ends of the loop with the rigid member on Opposite sides of the center thereof; a yieldingly, supported rotatable member adapted to travel inv the loop as a guide and to main tain the loop extended, and means to revolve the rotatable member in an orbit the plane of which is parallel with that oil the rigid member.

3. A device of the kind described con1- prising: a rigid member, a flexible member s ends spaced apart to form. a loo and adjustably connected. with the rigi men'iber at opposite sides oil the center thereof; rotatable men'iber adanted to travel in the loop as guide; a 1 procable member with whiehthe rotatal member is ($011? nected, and resilient inea movement of the rotatalma member in the loc in. one direction and cooperative therei to complete the movement of the said.

'I'QCl'fHOCiLillQ member, and. means to revolve i opposed to the member having a guide by which the plane of its movement is maintained parallel and co-axial with that of the rigid member; a

flexible loop member spanning the center of the rigid member and secured thereto; a rotatable member adapted to travel in the loop as a guide; resilient means by which the rotatable member is retained in engagement with the loop, and means to revolve the reciprocable member and therewith, the rotatable member.

6. In a device of the kinddescribed, th

combination with a rigid member and a flexible loop carried thereby, of a reciprocable member having a guide by which its movement is directed across the center of the rigid member, and a spring by which its movement in one direction is opposed, a wheel having its center in line w th the center of the rigid member, a crank on the wheel, a rod connecting the crank with the reciprocable member, a rotatable member mounted to travel in the loop as a guide, and a second rod connecting the crank with the rotatable member, guide means whereby the movement of the second rod is directed radially, and means to revolve the reciprocable member on the line passing through the center of the wheel and rigid member.

7. A device of the kind described compris ing two members, one of which is mounted to rotate in a plane parallel with that of the other, a loop having its ends secured to one of the said members at diametrically opposite points, and a wheel positioned 0E center from the other, member and yieldingly carried therefrom adapted to travel in the loop as a guide.

In testimony whereof, I afiix my signature.

EIRIKUB HJALMAR SIGURDSON. 

